Combining Texts

All the ideas for 'Reply to Professor Marcus', 'Leibniz:Body,Substance,Monad' and 'Gentzen's Analysis of First-Order Proofs'

expand these ideas     |    start again     |     specify just one area for these texts

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6 ideas

5. Theory of Logic / A. Overview of Logic / 1. Overview of Logic

13831

Logic is based on transitions between sentences [Prawitz]

5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / a. Logical connectives

13825

Natural deduction introduction rules may represent 'definitions' of logical connectives [Prawitz]

5. Theory of Logic / G. Quantification / 4. Substitutional Quantification

10801

Either reference really matters, or we don't need to replace it with substitutions [Quine]

5. Theory of Logic / H. Proof Systems / 4. Natural Deduction

13823

In natural deduction, inferences are atomic steps involving just one logical constant [Prawitz]

7. Existence / C. Structure of Existence / 6. Fundamentals / c. Monads

12695

Epicurean atomists say body is sensible, to distinguish it from space. [Garber]

26. Natural Theory / A. Speculations on Nature / 6. Early Matter Theories / g. Atomism

12705

Epicurean atoms are distinguished by their extreme hardness [Garber]